Orbit Fit and Astrometric record for 09KL30

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 09KL30    
# Created Tue Oct 24 01:37:46 2017
# Orbit generated from Bernstein formalism
# Fitting   30 observations of   30
# Arc:   1.05y
# First observation: 2009/05/25
#  Last observation: 2010/06/11
Preliminary a, adot, b, bdot, g, gdot:
  -0.000002   0.013168  -0.000000   0.005602   0.018631   0.000000
# Chi-squared of fit:    12.56 DOF:   54 RMS:  0.11
# Min/Max residuals:    -0.23    0.37
# Exact a, adot, b, bdot, g, gdot:
  1.108484E-05  1.320137E-02  4.830718E-06  5.607336E-03  1.873205E-02  8.059671E-04
# Covariance matrix:
  6.8806E-14  3.3254E-13 -4.2903E-15  2.2739E-13  2.4541E-13  3.8843E-11
  3.3254E-13  7.1935E-11 -7.9241E-13  4.3525E-11  3.0723E-11  7.4326E-09
 -4.2903E-15 -7.9241E-13  6.5808E-14 -5.4676E-13 -3.4002E-13 -8.2487E-11
  2.2739E-13  4.3525E-11 -5.4676E-13  2.7053E-11  1.8612E-11  4.5328E-09
  2.4541E-13  3.0723E-11 -3.4002E-13  1.8612E-11  1.3801E-11  3.1784E-09
  3.8843E-11  7.4326E-09 -8.2487E-11  4.5328E-09  3.1784E-09  7.7405E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.785609 -110.859827    0.089604   -0.048957   -1.005466  2454977.015284
# Heliocentric elements and errors
Epoch:              2454970.5000  =  2009/05/19
Mean Anomaly:          161.73777 +/-    14.179
Argument of Peri:      185.60674 +/-    14.300
Long of Asc Node:      255.47294 +/-     0.001
Inclination:            23.11572 +/-     0.003
Eccentricity:         0.19469911 +/-    0.0101
Semi-Major Axis:     45.79280941 +/-    0.2205
Time of Perihelion: 2404119.0552 +/-    4442.7
Perihelion:          36.87699038 +/-    0.4947
Aphelion:            54.70862843 +/-    0.5316
Period (y)              309.8876 +/-      2.24
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -19.42557804 +/-    0.0038
Ecliptic Y          -50.73936794 +/-    0.0099
Ecliptic Z           -2.59411788 +/-    0.0005
Ecliptic XDOT         0.00175184 +/-    0.0000
Ecliptic YDOT        -0.00083010 +/-    0.0001
Ecliptic ZDOT         0.00081277 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   54.39270161 +/-    0.0093
Geocenter to KBO     53.38442811 +/-    0.0106
# Hcoef:  7.61

The following table shows the complete astrometric record for 09KL30. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (09KL30) followed by the observatory code and reference code for the source of the astrometry.

2009 05  25.514518 16 27 54.76   -24 34 23.19  24.8R 09KL30    568  C~07fN      
2009 05  25.517041 16 27 54.75   -24 34 23.09  24.3R 09KL30    568  C~07fN      
2009 05  25.519597 16 27 54.73   -24 34 23.15  24.4R 09KL30    568  C~07fN      
2009 05  25.522212 16 27 54.71   -24 34 23.09  24.2R 09KL30    568  C~07fN      
2009 05  25.524866 16 27 54.71   -24 34 22.96  25.1R 09KL30    568  C~07fN      
2009 05  25.527423 16 27 54.71   -24 34 22.99  24.6R 09KL30    568  C~07fN      
2009 05  25.530014 16 27 54.71   -24 34 22.99  24.2R 09KL30    568  C~07fN      
2009 05  25.532619 16 27 54.69   -24 34 22.79  24.2R 09KL30    568  C~07fN      
2009 05  26.540061 16 27 50.49   -24 34 10.96  24.3R 09KL30    568  C~07fN      
2009 05  26.545535 16 27 50.46   -24 34 11.03  24.3R 09KL30    568  C~07fN      
2009 05  26.553535 16 27 50.44   -24 34 10.60  24.4R 09KL30    568  C~07fN      
2009 05  26.556286 16 27 50.41   -24 34 10.92  24.6R 09KL30    568  C~07fN      
2009 05  26.559042 16 27 50.40   -24 34 10.78  25.2R 09KL30    568  C~07fN      
2009 05  26.561672 16 27 50.41   -24 34 10.69  23.9R 09KL30    568  C~07fN      
2009 05  27.367988 16 27 47.06   -24 34 01.01  24.4R 09KL30    568  C~07fN      
2009 05  27.499944 16 27 46.50   -24 33 59.56  24.4R 09KL30    568  C~07fN      
2009 05  27.502480 16 27 46.48   -24 33 59.46  24.6R 09KL30    568  C~07fN      
2009 05  27.505047 16 27 46.47   -24 33 59.48  24.3R 09KL30    568  C~07fN      
2009 05  27.507654 16 27 46.46   -24 33 59.32  24.3R 09KL30    568  C~07fN      
2009 05  27.558348 16 27 46.25   -24 33 58.87  24.3R 09KL30    568  C~07fN      
2009 05  27.560926 16 27 46.23   -24 33 58.88  24.3R 09KL30    568  C~07fN      
2009 05  27.563465 16 27 46.24   -24 33 58.92  24.2R 09KL30    568  C~07fN      
2009 05  27.566071 16 27 46.21   -24 33 58.75  24.4R 09KL30    568  C~07fN      
2009 07  17.36181  16 24 40.05   -24 23 31.2   24.1i 09KL30    568  C~08CW      
2009 07  17.36550  16 24 40.08   -24 23 31.2   25.2i 09KL30    568  C~08CW      
2009 07  17.36714  16 24 40.04   -24 23 31.1   25.3i 09KL30    568  C~08CW      
2009 07  17.36970  16 24 40.04   -24 23 30.9   24.9i 09KL30    568  C~08CW      
2010 06  11.27140  16 30 16.40   -24 19 00.0   24.8  09KL30    568  C~0Oqh      
2010 06  11.41466  16 30 15.83   -24 18 58.2         09KL30    568  C~0Oqh      
2010 06  11.41577  16 30 15.82   -24 18 58.0         09KL30    568  C~0Oqh      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

  1   0.0000      0.00     0.01       0.00    -0.02
  2   0.0000     -0.15     0.01       0.08     0.05
  3   0.0000     -0.41    -0.10      -0.02    -0.06
  4   0.0000     -0.69    -0.23      -0.01    -0.05
  5   0.0000     -0.71    -0.09       0.12     0.07
  6   0.0000     -0.70     0.07       0.09     0.03
  7   0.0000     -0.70     0.22       0.09     0.03
  8   0.0000     -1.01     0.07       0.25     0.17
  9   0.0028    -59.44    -0.01       3.00     0.02
 10   0.0028    -59.84    -0.08       2.87    -0.13
 11   0.0028    -60.17     0.06       3.25     0.23
 12   0.0029    -60.53    -0.14       2.87    -0.16
 13   0.0029    -60.68    -0.13       2.99    -0.05
 14   0.0029    -60.56     0.14       3.10     0.05
 15   0.0051   -107.22     0.08       5.54     0.10
 16   0.0054   -114.99     0.09       5.78    -0.03
 17   0.0054   -115.27    -0.05       5.83     0.02
 18   0.0054   -115.40    -0.03       5.79    -0.03
 19   0.0055   -115.56    -0.04       5.93     0.10
 20   0.0056   -118.46     0.05       5.93    -0.06
 21   0.0056   -118.73    -0.07       5.87    -0.12
 22   0.0056   -118.59     0.22       5.86    -0.14
 23   0.0056   -119.02    -0.06       5.96    -0.05
 24   0.1447  -2727.98    -0.18     222.05    -0.08
 25   0.1447  -2727.57     0.37     222.11    -0.03
 26   0.1447  -2728.13    -0.13     222.13    -0.03
 27   0.1447  -2728.16    -0.06     222.32     0.15
 28   1.0452   1769.41    -0.17    1209.43    -0.13
 29   1.0456   1761.43     0.14    1210.03    -0.02
 30   1.0456   1761.27     0.03    1210.21     0.15

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

09KL30    quality flag:2

Type:       SCATEXTD  SCATNEAR  SCATEXTD

axisobj        45.469    47.171    45.346
ecceobj         0.202     0.270     0.199
incobj         23.234    23.235    23.233
qmin           35.380    33.169    35.361
qmax           56.561    62.269    56.235
amean          45.781    47.354    45.597
amin           45.372    46.908    45.208
amax           46.256    48.039    46.058
emean           0.206     0.273     0.203
emin            0.192     0.249     0.187
emax            0.224     0.299     0.221
imean          24.515    24.374    24.422
imin           23.987    23.561    23.910
imax           24.927    25.286    24.896
excite_mean     0.463     0.495     0.461
fracstop        1.000     1.000     1.000
cjmean          2.853     2.833     2.853

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       197.4     184.3     181.5
kozaiamp        180.0     180.0     180.0